#5B77AA
Closest named color: Stormy Blue (#507B9C). oklch(56.9% 0.086 261.9), rgb(91, 119, 170).
Aa
Black text reads best on this color (4.66:1).
About this color
#5B77AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.086 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.031 away. Black text reads best on it, at 4.66:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.66:1 |
| White text | 4.50:1 |
Values
| HEX | #5B77AA |
| RGB | rgb(91, 119, 170) |
| HSL | hsl(219, 32%, 51%) |
| OKLCH | oklch(56.9% 0.086 261.9) |
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 #5B77AA | 4.50:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #5B77AA | 4.66:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #5B77AA text on white | 4.50:1 | AA | Lc 71.2 | Content text, not long reading |
| #5B77AA text on black | 4.66:1 | AA | Lc -30.5 | 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 600.
-
Step 50
50
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D1DAE8
oklch(88.6% 0.022 259.2)
-
Step 300
300
#B3C1DA
oklch(80.8% 0.039 262.1)
-
Step 400
400
#8CA1C8
oklch(70.7% 0.062 262.7)
-
Step 500
500
#6F8ABA
oklch(63.2% 0.079 261.6)
-
Step 600
600 (this color)
#5B77AA
oklch(56.9% 0.086 261.9)
-
Step 700
700
#47608E
oklch(49% 0.08 262)
-
Step 800
800
#3B4F73
oklch(42.7% 0.065 261.7)
-
Step 900
900
#32425D
oklch(37.8% 0.051 260.6)
-
Step 950
950
#1E2737
oklch(27.2% 0.033 261.7)
#5B77AA 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) | #647BAC | 0.017 |
| Deuteranopia (no green cones) | #5B73A9 | 0.011 |
| Tritanopia (no blue cones) | #3C8289 | 0.077 |
| Achromatopsia (no color) | #777777 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B77AA
#5B77AA
oklch(56.9% 0.086 261.9)
- #907237
#907237
oklch(56.9% 0.086 82.4)
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 #5B77AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.031
- Dull Blue #49759C ΔE 0.032
- Steel Blue #4682B4 ΔE 0.035
- Off Blue #5684AE ΔE 0.036
- Cerulean #457B9D ΔE 0.036
- Flat Blue #3C73A8 ΔE 0.037
- Cool Blue #4984B8 ΔE 0.039
- Dusty Blue #5A86AD ΔE 0.042
Use #5B77AA 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.