#018DEE
Closest named color: Dodger Blue (#1E90FF). oklch(63.2% 0.176 249.4), rgb(1, 141, 238).
Aa
Black text reads best on this color (6.04:1).
About this color
#018DEE is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.176 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.028 away. Black text reads best on it, at 6.04:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #018DEE |
| RGB | rgb(1, 141, 238) |
| HSL | hsl(205, 99%, 47%) |
| OKLCH | oklch(63.2% 0.176 249.4) |
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 #018DEE | 3.47:1 | AA large text | Lc -67.0 | Content text, not long reading |
| Black text on #018DEE | 6.04:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #018DEE text on white | 3.47:1 | AA large text | Lc 61.5 | Content text, not long reading |
| #018DEE text on black | 6.04:1 | AA | Lc -40.2 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECFA
oklch(93.7% 0.024 248.1)
-
Step 200
200
#C2DCF8
oklch(88.4% 0.048 250.3)
-
Step 300
300
#96C6F6
oklch(81% 0.085 248.9)
-
Step 400
400
#56A6F2
oklch(70.8% 0.137 249.3)
-
Step 500
500 (this color)
#018DEE
oklch(63.2% 0.176 249.4)
-
Step 600
600
#0076C9
oklch(55.6% 0.155 249.4)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#004376
oklch(37.6% 0.105 249.5)
-
Step 950
950
#022848
oklch(27.1% 0.072 249.1)
#018DEE 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) | #5B94F2 | 0.055 |
| Deuteranopia (no green cones) | #3481EC | 0.032 |
| Tritanopia (no blue cones) | #00A5B2 | 0.127 |
| Achromatopsia (no color) | #8A8A8A | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #018DEE
#018DEE
oklch(63.2% 0.176 249.4)
- #BE7800
#BE7800
oklch(63.2% 0.137 69.5)
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 #018DEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.028
- Dark Sky Blue #448EE4 ΔE 0.031
- Chefchaouen Blue #4895EF ΔE 0.041
- Water Blue #0E87CC ΔE 0.052
- Clear Blue #247AFD ΔE 0.056
- Soft Blue #6488EA ΔE 0.057
- Cornflower Blue #6495ED ΔE 0.064
- Cornflower #6A79F7 ΔE 0.080
Use #018DEE 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.