#5F9DBF
Closest named color: Greyblue (#77A1B5). oklch(66.7% 0.082 233.8), rgb(95, 157, 191).
Aa
Black text reads best on this color (7.06:1).
About this color
#5F9DBF is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.082 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.033 away. Black text reads best on it, at 7.06:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.06:1 |
| White text | 2.97:1 |
Values
| HEX | #5F9DBF |
| RGB | rgb(95, 157, 191) |
| HSL | hsl(201, 43%, 56%) |
| OKLCH | oklch(66.7% 0.082 233.8) |
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 #5F9DBF | 2.97:1 | Fails | Lc -61.5 | Content text, not long reading |
| Black text on #5F9DBF | 7.06:1 | AAA | Lc 47.8 | Large or bold text, headings |
| #5F9DBF text on white | 2.97:1 | Fails | Lc 56.2 | Large or bold text, headings |
| #5F9DBF text on black | 7.06:1 | AAA | Lc -45.6 | 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 500.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#A8C6D7
oklch(81% 0.04 232.8)
-
Step 400
400
#79A8C3
oklch(70.8% 0.064 234.1)
-
Step 500
500 (this color)
#5F9DBF
oklch(66.7% 0.082 233.8)
-
Step 600
600
#367C9F
oklch(55.7% 0.088 233.3)
-
Step 700
700
#286888
oklch(49.1% 0.082 233.8)
-
Step 800
800
#23556F
oklch(42.8% 0.069 234.3)
-
Step 900
900
#22465A
oklch(37.7% 0.054 235)
-
Step 950
950
#152934
oklch(26.9% 0.033 233.9)
#5F9DBF 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) | #8D9BC1 | 0.054 |
| Deuteranopia (no green cones) | #7F91BE | 0.046 |
| Tritanopia (no blue cones) | #2BA6A8 | 0.062 |
| Achromatopsia (no color) | #969696 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F9DBF
#5F9DBF
oklch(66.7% 0.082 233.8)
- #BC8764
#BC8764
oklch(66.7% 0.081 54.3)
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 #5F9DBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.033
- Faded Blue #658CBB ΔE 0.047
- Cadet Blue #5F9EA0 ΔE 0.048
- Silver Lake Blue #778DA9 ΔE 0.050
- Bluegrey #85A3B2 ΔE 0.052
- Blue Grey #758DA3 ΔE 0.053
- Bluey Grey #89A0B0 ΔE 0.054
- Cool Gray #8D99AE ΔE 0.056
Use #5F9DBF 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.