#4E90B7
Closest named color: Faded Blue (#658CBB). oklch(62.6% 0.09 236.5), rgb(78, 144, 183).
Aa
Black text reads best on this color (5.99:1).
About this color
#4E90B7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.090 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.027 away. Black text reads best on it, at 5.99:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.99:1 |
| White text | 3.50:1 |
Values
| HEX | #4E90B7 |
| RGB | rgb(78, 144, 183) |
| HSL | hsl(202, 42%, 51%) |
| OKLCH | oklch(62.6% 0.09 236.5) |
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 #4E90B7 | 3.50:1 | AA large text | Lc -67.9 | Content text, not long reading |
| Black text on #4E90B7 | 5.99:1 | AA | Lc 41.7 | Non-text elements, placeholder text |
| #4E90B7 text on white | 3.50:1 | AA large text | Lc 62.4 | Content text, not long reading |
| #4E90B7 text on black | 5.99:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE7
oklch(88.5% 0.024 236)
-
Step 300
300
#A7C6DA
oklch(81% 0.044 236.4)
-
Step 400
400
#76A8C7
oklch(70.8% 0.07 236.3)
-
Step 500
500 (this color)
#4E90B7
oklch(62.6% 0.09 236.5)
-
Step 600
600
#307BA5
oklch(55.5% 0.098 237)
-
Step 700
700
#22688D
oklch(49.2% 0.09 236.2)
-
Step 800
800
#1E5573
oklch(42.8% 0.075 236.4)
-
Step 900
900
#1F465D
oklch(37.7% 0.059 237.1)
-
Step 950
950
#132936
oklch(26.9% 0.037 236.3)
#4E90B7 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) | #7E8FB9 | 0.054 |
| Deuteranopia (no green cones) | #6F84B6 | 0.046 |
| Tritanopia (no blue cones) | #009A9D | 0.068 |
| Achromatopsia (no color) | #898989 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E90B7
#4E90B7
oklch(62.6% 0.09 236.5)
- #B17951
#B17951
oklch(62.5% 0.089 55.8)
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 #4E90B7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.027
- Dusty Blue #5A86AD ΔE 0.029
- Off Blue #5684AE ΔE 0.033
- Cool Blue #4984B8 ΔE 0.036
- Steel Blue #4682B4 ΔE 0.042
- Blue NCS #118AB2 ΔE 0.043
- Silver Lake Blue #778DA9 ΔE 0.047
- Blue Grey #758DA3 ΔE 0.048
Use #4E90B7 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.