#90BCDC
Closest named color: Light Grey Blue (#9DBCD4). oklch(77.5% 0.066 240.2), rgb(144, 188, 220).
Aa
Black text reads best on this color (10.41:1).
About this color
#90BCDC is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.066 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.018 away. Black text reads best on it, at 10.41:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.41:1 |
| White text | 2.01:1 |
Values
| HEX | #90BCDC |
| RGB | rgb(144, 188, 220) |
| HSL | hsl(205, 52%, 71%) |
| OKLCH | oklch(77.5% 0.066 240.2) |
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 #90BCDC | 2.01:1 | Fails | Lc -43.6 | Non-text elements, placeholder text |
| Black text on #90BCDC | 10.41:1 | AAA | Lc 64.8 | Content text, not long reading |
| #90BCDC text on white | 2.01:1 | Fails | Lc 39.1 | Non-text elements, placeholder text |
| #90BCDC text on black | 10.41:1 | AAA | Lc -63.2 | Content text, not long reading |
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 300.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C4DDEF
oklch(88.5% 0.036 239.2)
-
Step 300
300 (this color)
#90BCDC
oklch(77.5% 0.066 240.2)
-
Step 400
400
#5FA9DB
oklch(70.7% 0.104 240)
-
Step 500
500
#2392D2
oklch(63.1% 0.134 240.5)
-
Step 600
600
#007BB6
oklch(55.6% 0.128 240.2)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#00466B
oklch(37.7% 0.087 240.8)
-
Step 950
950
#06293F
oklch(26.9% 0.056 241.4)
#90BCDC 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) | #AEBBDE | 0.037 |
| Deuteranopia (no green cones) | #A4B3DB | 0.032 |
| Tritanopia (no blue cones) | #77C4C6 | 0.052 |
| Achromatopsia (no color) | #B6B6B6 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90BCDC
#90BCDC
oklch(77.5% 0.066 240.2)
- #D6AD8C
#D6AD8C
oklch(77.6% 0.066 60.4)
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 #90BCDC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.018
- Light Cornflower Blue #98C1D9 ΔE 0.019
- Cloudy Blue #ACC2D9 ΔE 0.040
- Lightblue #7BC8F6 ΔE 0.043
- Sky Blue #87CEEB ΔE 0.047
- Light Steel Blue #B0C4DE ΔE 0.047
- Sky #82CAFC ΔE 0.050
- French Gray #ADB5BD ΔE 0.052
Use #90BCDC 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.