#0090CD
Closest named color: Water Blue (#0E87CC). oklch(61.9% 0.136 237.3), rgb(0, 144, 205).
Aa
Black text reads best on this color (5.87:1).
About this color
#0090CD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.136 and its hue 237°. 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 5.87:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.87:1 |
| White text | 3.57:1 |
Values
| HEX | #0090CD |
| RGB | rgb(0, 144, 205) |
| HSL | hsl(198, 100%, 40%) |
| OKLCH | oklch(61.9% 0.136 237.3) |
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 #0090CD | 3.57:1 | AA large text | Lc -68.2 | Content text, not long reading |
| Black text on #0090CD | 5.87:1 | AA | Lc 41.4 | Non-text elements, placeholder text |
| #0090CD text on white | 3.57:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #0090CD text on black | 5.87:1 | 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
#C3DDEF
oklch(88.4% 0.037 238.1)
-
Step 300
300
#98C8E7
oklch(81% 0.067 237)
-
Step 400
400
#5AAADB
oklch(70.7% 0.106 237.7)
-
Step 500
500 (this color)
#0090CD
oklch(61.9% 0.136 237.3)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
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
#032A3E
oklch(27% 0.056 236.7)
#0090CD 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 | 0.075 |
| Deuteranopia (no green cones) | #5980CC | 0.060 |
| Tritanopia (no blue cones) | #00A0A5 | 0.087 |
| Achromatopsia (no color) | #878787 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0090CD
#0090CD
oklch(61.9% 0.136 237.3)
- #C26E21
#C26E21
oklch(62.1% 0.136 57.4)
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 #0090CD, 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 0.041
- Cool Blue #4984B8 ΔE 0.046
- Dark Sky Blue #448EE4 ΔE 0.048
- Steel Blue #4682B4 ΔE 0.051
- Off Blue #5684AE ΔE 0.061
- Faded Blue #658CBB ΔE 0.061
- Dusty Blue #5A86AD ΔE 0.063
Use #0090CD 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.