#0189FC
Closest named color: Dodger Blue (#1E90FF). oklch(63.2% 0.197 253.4), rgb(1, 137, 252).
Aa
Black text reads best on this color (5.98:1).
About this color
#0189FC is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.197 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.021 away. Black text reads best on it, at 5.98:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 5.98:1 |
| White text | 3.50:1 |
Values
| HEX | #0189FC |
| RGB | rgb(1, 137, 252) |
| HSL | hsl(207, 99%, 50%) |
| OKLCH | oklch(63.2% 0.197 253.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #0189FC | 3.50:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #0189FC | 5.98:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #0189FC text on white | 3.50:1 | AA large text | Lc 61.8 | Content text, not long reading |
| #0189FC text on black | 5.98:1 | AA | Lc -39.9 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DDEBFD
oklch(93.5% 0.029 254.7)
-
Step 200
200
#C1DCFC
oklch(88.5% 0.053 252.8)
-
Step 300
300
#94C4FE
oklch(80.8% 0.097 253.6)
-
Step 400
400
#54A3FE
oklch(70.7% 0.155 253.6)
-
Step 500
500 (this color)
#0189FC
oklch(63.2% 0.197 253.4)
-
Step 600
600
#0073D5
oklch(55.7% 0.173 253.3)
-
Step 700
700
#0060B4
oklch(49.1% 0.153 253.4)
-
Step 800
800
#004E95
oklch(42.6% 0.134 253.6)
-
Step 900
900
#00417D
oklch(37.6% 0.117 253.3)
-
Step 950
950
#02264D
oklch(27% 0.082 254)
#0189FC with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #4893FF | 0.044 |
| Deuteranopia (no green cones) | #0080FA | 0.023 |
| Tritanopia (no blue cones) | #00A5B6 | 0.146 |
| Achromatopsia (no color) | #898989 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0189FC
#0189FC
oklch(63.2% 0.197 253.4)
- #BA7B00
#BA7B00
oklch(63.3% 0.134 73.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #0189FC, closest first.
No curated palette has a color within ΔE 0.04 of #0189FC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.021
- Clear Blue #247AFD ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.049
- Chefchaouen Blue #4895EF ΔE 0.053
- Soft Blue #6488EA ΔE 0.062
- Cerulean Blue #056EEE ΔE 0.070
- Cornflower #6A79F7 ΔE 0.071
- Water Blue #0E87CC ΔE 0.072
Use #0189FC in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.