#5D9ECB
Closest named color: Greyblue (#77A1B5). oklch(67.4% 0.095 240.4), rgb(93, 158, 203).
Aa
Black text reads best on this color (7.21:1).
About this color
#5D9ECB is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.095 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.044 away. Black text reads best on it, at 7.21:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.21:1 |
| White text | 2.90:1 |
Values
| HEX | #5D9ECB |
| RGB | rgb(93, 158, 203) |
| HSL | hsl(205, 51%, 58%) |
| OKLCH | oklch(67.4% 0.095 240.4) |
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 #5D9ECB | 2.90:1 | Fails | Lc -60.6 | Content text, not long reading |
| Black text on #5D9ECB | 7.21:1 | AAA | Lc 48.7 | Large or bold text, headings |
| #5D9ECB text on white | 2.90:1 | Fails | Lc 55.3 | Large or bold text, headings |
| #5D9ECB text on black | 7.21:1 | AAA | Lc -46.5 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C7DDED
oklch(88.6% 0.032 239.4)
-
Step 300
300
#9FC6E4
oklch(80.9% 0.06 241.6)
-
Step 400
400 (this color)
#5D9ECB
oklch(67.4% 0.095 240.4)
-
Step 500
500
#3792CB
oklch(63.2% 0.121 240.3)
-
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
#0E4667
oklch(37.7% 0.079 240.5)
-
Step 950
950
#0B293C
oklch(26.9% 0.05 240.3)
#5D9ECB 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) | #8A9ECD | 0.051 |
| Deuteranopia (no green cones) | #7B92CA | 0.043 |
| Tritanopia (no blue cones) | #0EA9AD | 0.077 |
| Achromatopsia (no color) | #979797 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D9ECB
#5D9ECB
oklch(67.4% 0.095 240.4)
- #C18858
#C18858
oklch(67.3% 0.095 60.3)
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 #5D9ECB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.044
- Faded Blue #658CBB ΔE 0.049
- Bluegrey #85A3B2 ΔE 0.061
- Silver Lake Blue #778DA9 ΔE 0.061
- Bluey Grey #89A0B0 ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.063
- Cool Gray #8D99AE ΔE 0.064
- Cadet Blue #5F9EA0 ΔE 0.066
Use #5D9ECB 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.