#008CD4
Closest named color: Water Blue (#0E87CC). oklch(61.4% 0.147 242.3), rgb(0, 140, 212).
Aa
Black text reads best on this color (5.70:1).
About this color
#008CD4 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.147 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.016 away. Black text reads best on it, at 5.70:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.70:1 |
| White text | 3.68:1 |
Values
| HEX | #008CD4 |
| RGB | rgb(0, 140, 212) |
| HSL | hsl(200, 100%, 42%) |
| OKLCH | oklch(61.4% 0.147 242.3) |
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 #008CD4 | 3.68:1 | AA large text | Lc -69.2 | Content text, not long reading |
| Black text on #008CD4 | 5.70:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #008CD4 text on white | 3.68:1 | AA large text | Lc 63.7 | Content text, not long reading |
| #008CD4 text on black | 5.70:1 | AA | Lc -38.0 | 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
#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)
#008CD4
oklch(61.4% 0.147 242.3)
-
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
#032941
oklch(26.9% 0.061 242.1)
#008CD4 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) | #698ED7 | 0.067 |
| Deuteranopia (no green cones) | #4E7ED3 | 0.049 |
| Tritanopia (no blue cones) | #009EA6 | 0.099 |
| Achromatopsia (no color) | #858585 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #008CD4
#008CD4
oklch(61.4% 0.147 242.3)
- #BE6E00
#BE6E00
oklch(61.4% 0.14 62.8)
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 #008CD4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.016
- Dark Sky Blue #448EE4 ΔE 0.040
- Cool Blue #4984B8 ΔE 0.050
- Blue NCS #118AB2 ΔE 0.052
- Steel Blue #4682B4 ΔE 0.054
- Windows Blue #3778BF ΔE 0.058
- Chefchaouen Blue #4895EF ΔE 0.059
- Dodger Blue #1E90FF ΔE 0.066
Use #008CD4 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.