#4089FE
Closest named color: Dodger Blue (#1E90FF). oklch(64.5% 0.189 259.5), rgb(64, 137, 254).
Aa
Black text reads best on this color (6.22:1).
About this color
#4089FE is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.189 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.022 away. Black text reads best on it, at 6.22:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.189) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.22:1 |
| White text | 3.37:1 |
Values
| HEX | #4089FE |
| RGB | rgb(64, 137, 254) |
| HSL | hsl(217, 99%, 62%) |
| OKLCH | oklch(64.5% 0.189 259.5) |
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 #4089FE | 3.37:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #4089FE | 6.22:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #4089FE text on white | 3.37:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #4089FE text on black | 6.22:1 | AA | Lc -41.0 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C5DBFC
oklch(88.6% 0.051 258.4)
-
Step 300
300
#9DC2FD
oklch(80.9% 0.093 259.6)
-
Step 400
400
#67A0FC
oklch(70.7% 0.148 259.6)
-
Step 500
500 (this color)
#4089FE
oklch(64.5% 0.189 259.5)
-
Step 600
600
#166BE8
oklch(55.7% 0.205 259.4)
-
Step 700
700
#0658CA
oklch(49.1% 0.191 259.5)
-
Step 800
800
#0C49A3
oklch(42.8% 0.157 259.4)
-
Step 900
900
#133E81
oklch(37.6% 0.123 259.4)
-
Step 950
950
#0D254C
oklch(27% 0.078 259.7)
#4089FE 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) | #4A95FF | 0.033 |
| Deuteranopia (no green cones) | #1684FC | 0.028 |
| Tritanopia (no blue cones) | #00A5B7 | 0.148 |
| Achromatopsia (no color) | #8C8C8C | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4089FE
#4089FE
oklch(64.5% 0.189 259.5)
- #B88200
#B88200
oklch(64.4% 0.134 79.3)
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 #4089FE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.022
- Chefchaouen Blue #4895EF ΔE 0.043
- Soft Blue #6488EA ΔE 0.043
- Dark Sky Blue #448EE4 ΔE 0.043
- Clear Blue #247AFD ΔE 0.045
- Cornflower #6A79F7 ΔE 0.052
- Cornflower Blue #6495ED ΔE 0.057
- Water Blue #0E87CC ΔE 0.082
Use #4089FE 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.