#5281B3
Closest named color: Steel Blue (#4682B4). oklch(59.1% 0.093 251), rgb(82, 129, 179).
Aa
Black text reads best on this color (5.14:1).
About this color
#5281B3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.093 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.011 away. Black text reads best on it, at 5.14:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 5.14:1 |
| White text | 4.07:1 |
Values
| HEX | #5281B3 |
| RGB | rgb(82, 129, 179) |
| HSL | hsl(211, 39%, 51%) |
| OKLCH | oklch(59.1% 0.093 251) |
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 #5281B3 | 4.07:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #5281B3 | 5.14:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #5281B3 text on white | 4.07:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #5281B3 text on black | 5.14:1 | AA | Lc -33.8 | 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
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBE8
oklch(88.6% 0.023 248.1)
-
Step 300
300
#ADC3DB
oklch(80.8% 0.042 250.6)
-
Step 400
400
#82A4C9
oklch(70.7% 0.066 250.9)
-
Step 500
500
#628DBC
oklch(63.1% 0.086 251.4)
-
Step 600
600 (this color)
#5281B3
oklch(59.1% 0.093 251)
-
Step 700
700
#396390
oklch(49% 0.087 251.5)
-
Step 800
800
#305175
oklch(42.7% 0.072 251.8)
-
Step 900
900
#2A435E
oklch(37.5% 0.056 251.3)
-
Step 950
950
#192837
oklch(27.1% 0.035 249.2)
#5281B3 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) | #6D83B5 | 0.033 |
| Deuteranopia (no green cones) | #6079B2 | 0.026 |
| Tritanopia (no blue cones) | #178C92 | 0.080 |
| Achromatopsia (no color) | #7E7E7E | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5281B3
#5281B3
oklch(59.1% 0.093 251)
- #A0743B
#A0743B
oklch(59.2% 0.092 71.4)
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 #5281B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.011
- Cool Blue #4984B8 ΔE 0.012
- Off Blue #5684AE ΔE 0.014
- Dusty Blue #5A86AD ΔE 0.022
- Stormy Blue #507B9C ΔE 0.036
- Cerulean #457B9D ΔE 0.039
- Faded Blue #658CBB ΔE 0.040
- Windows Blue #3778BF ΔE 0.045
Use #5281B3 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.