#0B90CD
Closest named color: Water Blue (#0E87CC). oklch(62% 0.135 237.8), rgb(11, 144, 205).
Aa
Black text reads best on this color (5.88:1).
About this color
#0B90CD is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.135 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.025 away. Black text reads best on it, at 5.88:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.88:1 |
| White text | 3.56:1 |
Values
| HEX | #0B90CD |
| RGB | rgb(11, 144, 205) |
| HSL | hsl(199, 90%, 42%) |
| OKLCH | oklch(62% 0.135 237.8) |
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 #0B90CD | 3.56:1 | AA large text | Lc -68.2 | Content text, not long reading |
| Black text on #0B90CD | 5.88:1 | AA | Lc 41.4 | Non-text elements, placeholder text |
| #0B90CD text on white | 3.56:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #0B90CD text on black | 5.88:1 | AA | Lc -39.0 | 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
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C4DDEF
oklch(88.5% 0.036 239.2)
-
Step 300
300
#99C8E7
oklch(81% 0.066 237.5)
-
Step 400
400
#5BAADA
oklch(70.7% 0.105 237.4)
-
Step 500
500 (this color)
#0B90CD
oklch(62% 0.135 237.8)
-
Step 600
600
#007CB2
oklch(55.6% 0.123 237.7)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#042A3E
oklch(27.1% 0.055 237.2)
#0B90CD 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) | #7290D0 | 0.073 |
| Deuteranopia (no green cones) | #5A80CC | 0.059 |
| Tritanopia (no blue cones) | #00A0A5 | 0.087 |
| Achromatopsia (no color) | #888888 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B90CD
#0B90CD
oklch(62% 0.135 237.8)
- #C16E22
#C16E22
oklch(61.9% 0.135 57.6)
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 #0B90CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.025
- Blue NCS #118AB2 ΔE 0.042
- Cool Blue #4984B8 ΔE 0.046
- Dark Sky Blue #448EE4 ΔE 0.047
- Steel Blue #4682B4 ΔE 0.051
- Faded Blue #658CBB ΔE 0.060
- Off Blue #5684AE ΔE 0.060
- Dusty Blue #5A86AD ΔE 0.062
Use #0B90CD 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.