#5B7DAE
Closest named color: Off Blue (#5684AE). oklch(58.4% 0.085 257.5), rgb(91, 125, 174).
Aa
Black text reads best on this color (4.98:1).
About this color
#5B7DAE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.085 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.020 away. Black text reads best on it, at 4.98:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 4.98:1 |
| White text | 4.20:1 |
Values
| HEX | #5B7DAE |
| RGB | rgb(91, 125, 174) |
| HSL | hsl(215, 34%, 52%) |
| OKLCH | oklch(58.4% 0.085 257.5) |
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 #5B7DAE | 4.20:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #5B7DAE | 4.98:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #5B7DAE text on white | 4.20:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #5B7DAE text on black | 4.98:1 | AA | Lc -32.7 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D1DAE8
oklch(88.6% 0.022 259.2)
-
Step 300
300
#B1C2DA
oklch(80.9% 0.039 257)
-
Step 400
400
#89A2C7
oklch(70.6% 0.061 258.1)
-
Step 500
500
#6B8BB9
oklch(63.1% 0.079 257.4)
-
Step 600
600 (this color)
#5B7DAE
oklch(58.4% 0.085 257.5)
-
Step 700
700
#43628D
oklch(49.1% 0.079 256.7)
-
Step 800
800
#385073
oklch(42.8% 0.066 257.7)
-
Step 900
900
#30425D
oklch(37.6% 0.052 258.3)
-
Step 950
950
#1C2736
oklch(27% 0.032 256.3)
#5B7DAE 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) | #6A80B0 | 0.022 |
| Deuteranopia (no green cones) | #6178AD | 0.015 |
| Tritanopia (no blue cones) | #38888E | 0.076 |
| Achromatopsia (no color) | #7B7B7B | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B7DAE
#5B7DAE
oklch(58.4% 0.085 257.5)
- #98753D
#98753D
oklch(58.5% 0.086 77.5)
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 #5B7DAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.020
- Steel Blue #4682B4 ΔE 0.024
- Cool Blue #4984B8 ΔE 0.026
- Dusty Blue #5A86AD ΔE 0.026
- Stormy Blue #507B9C ΔE 0.032
- Cerulean #457B9D ΔE 0.038
- Dull Blue #49759C ΔE 0.041
- Faded Blue #658CBB ΔE 0.046
Use #5B7DAE 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.