#0088BB
Closest named color: Blue NCS (#118AB2). oklch(59.1% 0.123 233.9), rgb(0, 136, 187).
Aa
Black text reads best on this color (5.23:1).
About this color
#0088BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.123 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.017 away. Black text reads best on it, at 5.23:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.23:1 |
| White text | 4.00:1 |
Values
| HEX | #0088BB |
| RGB | rgb(0, 136, 187) |
| HSL | hsl(196, 100%, 37%) |
| OKLCH | oklch(59.1% 0.123 233.9) |
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 #0088BB | 4.00:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #0088BB | 5.23:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #0088BB text on white | 4.00:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #0088BB text on black | 5.23:1 | AA | Lc -34.9 | 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 600.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEB
oklch(88.5% 0.031 234.5)
-
Step 300
300
#9EC7DF
oklch(80.8% 0.055 234)
-
Step 400
400
#65AAD0
oklch(70.7% 0.089 234.1)
-
Step 500
500
#3294C3
oklch(63.1% 0.113 233.8)
-
Step 600
600 (this color)
#0088BB
oklch(59.1% 0.123 233.9)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#094763
oklch(37.6% 0.075 234.7)
-
Step 950
950
#0A2A3A
oklch(27% 0.047 234.3)
#0088BB 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) | #6E87BD | 0.075 |
| Deuteranopia (no green cones) | #5878BA | 0.063 |
| Tritanopia (no blue cones) | #00959A | 0.073 |
| Achromatopsia (no color) | #7F7F7F | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0088BB
#0088BB
oklch(59.1% 0.123 233.9)
- #B5662C
#B5662C
oklch(59% 0.124 53.6)
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 #0088BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.017
- Water Blue #0E87CC ΔE 0.028
- Steel Blue #4682B4 ΔE 0.033
- Cool Blue #4984B8 ΔE 0.034
- Nice Blue #107AB0 ΔE 0.040
- Teal Blue #01889F ΔE 0.045
- Off Blue #5684AE ΔE 0.048
- Windows Blue #3778BF ΔE 0.049
Use #0088BB 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.