#5D9FCF
Closest named color: Greyblue (#77A1B5). oklch(67.8% 0.098 241.8), rgb(93, 159, 207).
Aa
Black text reads best on this color (7.32:1).
About this color
#5D9FCF is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.098 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.048 away. Black text reads best on it, at 7.32:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.32:1 |
| White text | 2.86:1 |
Values
| HEX | #5D9FCF |
| RGB | rgb(93, 159, 207) |
| HSL | hsl(205, 54%, 59%) |
| OKLCH | oklch(67.8% 0.098 241.8) |
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 #5D9FCF | 2.86:1 | Fails | Lc -60.0 | Large or bold text, headings |
| Black text on #5D9FCF | 7.32:1 | AAA | Lc 49.3 | Large or bold text, headings |
| #5D9FCF text on white | 2.86:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #5D9FCF text on black | 7.32:1 | AAA | Lc -47.1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DDEE
oklch(88.6% 0.034 239.9)
-
Step 300
300
#9EC6E5
oklch(80.8% 0.061 241.8)
-
Step 400
400 (this color)
#5D9FCF
oklch(67.8% 0.098 241.8)
-
Step 500
500
#3491CE
oklch(63% 0.126 241.8)
-
Step 600
600
#007AB9
oklch(55.5% 0.132 242.1)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800
#005481
oklch(42.7% 0.101 241.9)
-
Step 900
900
#0C4669
oklch(37.8% 0.082 241.6)
-
Step 950
950
#0B293D
oklch(27% 0.051 241.6)
#5D9FCF 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) | #8A9FD1 | 0.051 |
| Deuteranopia (no green cones) | #7B93CE | 0.043 |
| Tritanopia (no blue cones) | #00ABAF | 0.081 |
| Achromatopsia (no color) | #999999 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D9FCF
#5D9FCF
oklch(67.8% 0.098 241.8)
- #C38956
#C38956
oklch(67.7% 0.098 61.3)
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 #5D9FCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.048
- Faded Blue #658CBB ΔE 0.053
- Cornflower Blue #6495ED ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.063
- Chefchaouen Blue #4895EF ΔE 0.064
- Bluey Grey #89A0B0 ΔE 0.065
- Silver Lake Blue #778DA9 ΔE 0.066
- Cool Gray #8D99AE ΔE 0.067
Use #5D9FCF 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.