#008BD3
Closest named color: Water Blue (#0E87CC). oklch(61.1% 0.146 242.5), rgb(0, 139, 211).
Aa
Black text reads best on this color (5.63:1).
About this color
#008BD3 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.146 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.014 away. Black text reads best on it, at 5.63:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.63:1 |
| White text | 3.72:1 |
Values
| HEX | #008BD3 |
| RGB | rgb(0, 139, 211) |
| HSL | hsl(200, 100%, 41%) |
| OKLCH | oklch(61.1% 0.146 242.5) |
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 #008BD3 | 3.72:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #008BD3 | 5.63:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #008BD3 text on white | 3.72:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #008BD3 text on black | 5.63:1 | AA | Lc -37.5 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DEECF7
oklch(93.6% 0.021 241.4)
-
Step 200
200
#C3DDF2
oklch(88.5% 0.04 242.4)
-
Step 300
300
#98C7EC
oklch(80.9% 0.072 242.5)
-
Step 400
400
#5AA9E2
oklch(70.8% 0.114 242.1)
-
Step 500
500 (this color)
#008BD3
oklch(61.1% 0.146 242.5)
-
Step 600
600
#007ABA
oklch(55.6% 0.133 242.5)
-
Step 700
700
#00669D
oklch(49% 0.118 242.7)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900
#00466D
oklch(37.8% 0.09 242.2)
-
Step 950
950
#042941
oklch(27% 0.06 242.6)
#008BD3 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) | #688DD6 | 0.066 |
| Deuteranopia (no green cones) | #4D7DD2 | 0.049 |
| Tritanopia (no blue cones) | #009DA5 | 0.099 |
| Achromatopsia (no color) | #848484 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #008BD3
#008BD3
oklch(61.1% 0.146 242.5)
- #BD6D00
#BD6D00
oklch(61.1% 0.14 62.6)
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 #008BD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.014
- Dark Sky Blue #448EE4 ΔE 0.042
- Cool Blue #4984B8 ΔE 0.049
- Blue NCS #118AB2 ΔE 0.051
- Steel Blue #4682B4 ΔE 0.053
- Windows Blue #3778BF ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.061
- Nice Blue #107AB0 ΔE 0.065
Use #008BD3 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.