#5D91C9
Closest named color: Faded Blue (#658CBB). oklch(64.4% 0.101 251.3), rgb(93, 145, 201).
Aa
Black text reads best on this color (6.35:1).
About this color
#5D91C9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.101 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.023 away. Black text reads best on it, at 6.35:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.35:1 |
| White text | 3.30:1 |
Values
| HEX | #5D91C9 |
| RGB | rgb(93, 145, 201) |
| HSL | hsl(211, 50%, 58%) |
| OKLCH | oklch(64.4% 0.101 251.3) |
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 #5D91C9 | 3.30:1 | AA large text | Lc -65.7 | Content text, not long reading |
| Black text on #5D91C9 | 6.35:1 | AA | Lc 43.8 | Non-text elements, placeholder text |
| #5D91C9 text on white | 3.30:1 | AA large text | Lc 60.3 | Content text, not long reading |
| #5D91C9 text on black | 6.35:1 | AA | Lc -41.4 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEB
oklch(88.5% 0.027 249.9)
-
Step 300
300
#AAC3E0
oklch(80.8% 0.049 252.3)
-
Step 400
400
#7CA4D1
oklch(70.6% 0.079 251.9)
-
Step 500
500 (this color)
#5D91C9
oklch(64.4% 0.101 251.3)
-
Step 600
600
#3E76B1
oklch(55.5% 0.11 251.5)
-
Step 700
700
#306399
oklch(49.1% 0.103 251.8)
-
Step 800
800
#28517C
oklch(42.7% 0.085 251.5)
-
Step 900
900
#254364
oklch(37.6% 0.067 252.1)
-
Step 950
950
#16283A
oklch(27.1% 0.041 249.6)
#5D91C9 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) | #7A93CB | 0.035 |
| Deuteranopia (no green cones) | #6C89C8 | 0.026 |
| Tritanopia (no blue cones) | #1B9EA5 | 0.088 |
| Achromatopsia (no color) | #8D8D8D | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D91C9
#5D91C9
oklch(64.4% 0.101 251.3)
- #B48242
#B48242
oklch(64.3% 0.102 71)
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 #5D91C9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.023
- Dusty Blue #5A86AD ΔE 0.047
- Dark Sky Blue #448EE4 ΔE 0.048
- Cool Blue #4984B8 ΔE 0.048
- Off Blue #5684AE ΔE 0.050
- Silver Lake Blue #778DA9 ΔE 0.053
- Cornflower Blue #6495ED ΔE 0.055
- Steel Blue #4682B4 ΔE 0.057
Use #5D91C9 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.