#5F91C0
Closest named color: Faded Blue (#658CBB). oklch(64% 0.089 247.9), rgb(95, 145, 192).
Aa
Black text reads best on this color (6.29:1).
About this color
#5F91C0 is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.089 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.014 away. Black text reads best on it, at 6.29:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.29:1 |
| White text | 3.33:1 |
Values
| HEX | #5F91C0 |
| RGB | rgb(95, 145, 192) |
| HSL | hsl(209, 43%, 56%) |
| OKLCH | oklch(64% 0.089 247.9) |
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 #5F91C0 | 3.33:1 | AA large text | Lc -66.1 | Content text, not long reading |
| Black text on #5F91C0 | 6.29:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #5F91C0 text on white | 3.33:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #5F91C0 text on black | 6.29:1 | AA | Lc -41.1 | 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
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CDDBE9
oklch(88.5% 0.025 248.1)
-
Step 300
300
#ABC4DC
oklch(80.9% 0.044 247.3)
-
Step 400
400
#7EA5CA
oklch(70.7% 0.069 247.5)
-
Step 500
500 (this color)
#5F91C0
oklch(64% 0.089 247.9)
-
Step 600
600
#4178A9
oklch(55.7% 0.096 247.4)
-
Step 700
700
#336491
oklch(49% 0.09 248.3)
-
Step 800
800
#2B5276
oklch(42.7% 0.075 248.2)
-
Step 900
900
#27445F
oklch(37.7% 0.058 248)
-
Step 950
950
#172838
oklch(27% 0.038 247.9)
#5F91C0 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) | #7E92C2 | 0.038 |
| Deuteranopia (no green cones) | #7188BF | 0.030 |
| Tritanopia (no blue cones) | #2E9CA1 | 0.076 |
| Achromatopsia (no color) | #8D8D8D | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F91C0
#5F91C0
oklch(64% 0.089 247.9)
- #B0824E
#B0824E
oklch(64% 0.089 68.5)
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 #5F91C0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.014
- Dusty Blue #5A86AD ΔE 0.039
- Silver Lake Blue #778DA9 ΔE 0.041
- Off Blue #5684AE ΔE 0.043
- Cool Blue #4984B8 ΔE 0.046
- Blue Grey #758DA3 ΔE 0.047
- Steel Blue #4682B4 ΔE 0.053
- Light Slate Gray #778899 ΔE 0.061
Use #5F91C0 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.