#008CDB
Closest named color: Water Blue (#0E87CC). oklch(61.8% 0.155 244.7), rgb(0, 140, 219).
Aa
Black text reads best on this color (5.77:1).
About this color
#008CDB is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.155 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.024 away. Black text reads best on it, at 5.77:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.77:1 |
| White text | 3.63:1 |
Values
| HEX | #008CDB |
| RGB | rgb(0, 140, 219) |
| HSL | hsl(202, 100%, 43%) |
| OKLCH | oklch(61.8% 0.155 244.7) |
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 #008CDB | 3.63:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #008CDB | 5.77:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #008CDB text on white | 3.63:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #008CDB text on black | 5.77:1 | AA | Lc -38.4 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DEECF8
oklch(93.6% 0.022 243.8)
-
Step 200
200
#C3DDF4
oklch(88.6% 0.042 245)
-
Step 300
300
#97C6EF
oklch(80.8% 0.077 245.3)
-
Step 400
400
#59A8E7
oklch(70.8% 0.121 244.8)
-
Step 500
500 (this color)
#008CDB
oklch(61.8% 0.155 244.7)
-
Step 600
600
#0079BE
oklch(55.6% 0.139 244.6)
-
Step 700
700
#0066A1
oklch(49.2% 0.123 244.5)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#004570
oklch(37.7% 0.095 244.9)
-
Step 950
950
#032943
oklch(27.1% 0.063 244.1)
#008CDB 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) | #658FDE | 0.062 |
| Deuteranopia (no green cones) | #487EDA | 0.045 |
| Tritanopia (no blue cones) | #009FA9 | 0.106 |
| Achromatopsia (no color) | #868686 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #008CDB
#008CDB
oklch(61.8% 0.155 244.7)
- #BE7100
#BE7100
oklch(61.9% 0.139 64.8)
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 #008CDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.024
- Dark Sky Blue #448EE4 ΔE 0.034
- Chefchaouen Blue #4895EF ΔE 0.052
- Dodger Blue #1E90FF ΔE 0.055
- Cool Blue #4984B8 ΔE 0.058
- Windows Blue #3778BF ΔE 0.062
- Blue NCS #118AB2 ΔE 0.063
- Steel Blue #4682B4 ΔE 0.063
Use #008CDB 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.