#5A91C2
Closest named color: Faded Blue (#658CBB). oklch(63.9% 0.094 246.8), rgb(90, 145, 194).
Aa
Black text reads best on this color (6.26:1).
About this color
#5A91C2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.094 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.017 away. Black text reads best on it, at 6.26:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.26:1 |
| White text | 3.35:1 |
Values
| HEX | #5A91C2 |
| RGB | rgb(90, 145, 194) |
| HSL | hsl(208, 46%, 56%) |
| OKLCH | oklch(63.9% 0.094 246.8) |
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 #5A91C2 | 3.35:1 | AA large text | Lc -66.3 | Content text, not long reading |
| Black text on #5A91C2 | 6.26:1 | AA | Lc 43.2 | Non-text elements, placeholder text |
| #5A91C2 text on white | 3.35:1 | AA large text | Lc 60.8 | Content text, not long reading |
| #5A91C2 text on black | 6.26:1 | AA | Lc -40.9 | 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
#CCDBEA
oklch(88.5% 0.026 248.1)
-
Step 300
300
#A9C4DD
oklch(80.8% 0.046 246.3)
-
Step 400
400
#7BA5CD
oklch(70.6% 0.075 247.7)
-
Step 500
500 (this color)
#5A91C2
oklch(63.9% 0.094 246.8)
-
Step 600
600
#3B78AC
oklch(55.6% 0.103 246.7)
-
Step 700
700
#2D6594
oklch(49.2% 0.096 246.7)
-
Step 800
800
#275278
oklch(42.6% 0.08 247.6)
-
Step 900
900
#244460
oklch(37.6% 0.061 246.7)
-
Step 950
950
#162838
oklch(26.9% 0.038 246.6)
#5A91C2 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) | #7C92C4 | 0.040 |
| Deuteranopia (no green cones) | #6F88C1 | 0.032 |
| Tritanopia (no blue cones) | #1A9DA2 | 0.080 |
| Achromatopsia (no color) | #8C8C8C | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A91C2
#5A91C2
oklch(63.9% 0.094 246.8)
- #B2804A
#B2804A
oklch(63.8% 0.094 66.9)
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 #5A91C2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.017
- Dusty Blue #5A86AD ΔE 0.039
- Off Blue #5684AE ΔE 0.043
- Cool Blue #4984B8 ΔE 0.043
- Silver Lake Blue #778DA9 ΔE 0.046
- Steel Blue #4682B4 ΔE 0.051
- Blue Grey #758DA3 ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.057
Use #5A91C2 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.