#2A90CD
Closest named color: Water Blue (#0E87CC). oklch(62.5% 0.129 240.5), rgb(42, 144, 205).
Aa
Black text reads best on this color (5.96:1).
About this color
#2A90CD is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.129 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.029 away. Black text reads best on it, at 5.96:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.96:1 |
| White text | 3.51:1 |
Values
| HEX | #2A90CD |
| RGB | rgb(42, 144, 205) |
| HSL | hsl(202, 66%, 48%) |
| OKLCH | oklch(62.5% 0.129 240.5) |
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 #2A90CD | 3.51:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #2A90CD | 5.96:1 | AA | Lc 41.7 | Non-text elements, placeholder text |
| #2A90CD text on white | 3.51:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #2A90CD text on black | 5.96:1 | AA | Lc -39.3 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C5DDEE
oklch(88.5% 0.035 238.7)
-
Step 300
300
#9CC7E6
oklch(81% 0.063 239.9)
-
Step 400
400
#63A9D9
oklch(70.8% 0.1 240.2)
-
Step 500
500 (this color)
#2A90CD
oklch(62.5% 0.129 240.5)
-
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
#064669
oklch(37.6% 0.083 240.5)
-
Step 950
950
#08293E
oklch(26.9% 0.054 241.2)
#2A90CD 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) | #7391D0 | 0.065 |
| Deuteranopia (no green cones) | #5D82CC | 0.051 |
| Tritanopia (no blue cones) | #009FA5 | 0.086 |
| Achromatopsia (no color) | #898989 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A90CD
#2A90CD
oklch(62.5% 0.129 240.5)
- #BF7328
#BF7328
oklch(62.6% 0.129 60.5)
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 #2A90CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.029
- Dark Sky Blue #448EE4 ΔE 0.042
- Cool Blue #4984B8 ΔE 0.042
- Blue NCS #118AB2 ΔE 0.045
- Steel Blue #4682B4 ΔE 0.048
- Faded Blue #658CBB ΔE 0.051
- Off Blue #5684AE ΔE 0.055
- Dusty Blue #5A86AD ΔE 0.057
Use #2A90CD 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.