#537398
Closest named color: Dull Blue (#49759C). oklch(54.6% 0.069 252.6), rgb(83, 115, 152).
Aa
White text reads best on this color (4.91:1).
About this color
#537398 is a medium-dark, muted blue. In OKLCH its lightness is 55%, its chroma 0.069 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.012 away. White text reads best on it, at 4.91:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #537398 |
| RGB | rgb(83, 115, 152) |
| HSL | hsl(212, 29%, 46%) |
| OKLCH | oklch(54.6% 0.069 252.6) |
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 #537398 | 4.91:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #537398 | 4.27:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #537398 text on white | 4.91:1 | AA | Lc 74.0 | Content text, not long reading |
| #537398 text on black | 4.27:1 | AA large text | Lc -27.7 | Dividers and decoration only |
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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B3C2D5
oklch(80.9% 0.032 254.3)
-
Step 400
400
#8BA3BF
oklch(70.7% 0.049 252.5)
-
Step 500
500
#6E8CAF
oklch(63% 0.063 252.6)
-
Step 600
600 (this color)
#537398
oklch(54.6% 0.069 252.6)
-
Step 700
700
#466384
oklch(49.1% 0.063 252.3)
-
Step 800
800
#3A516C
oklch(42.8% 0.053 253)
-
Step 900
900
#324357
oklch(37.7% 0.041 252.9)
-
Step 950
950
#1D2733
oklch(26.9% 0.027 253.3)
#537398 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) | #65749A | 0.024 |
| Deuteranopia (no green cones) | #5C6D97 | 0.019 |
| Tritanopia (no blue cones) | #387B80 | 0.059 |
| Achromatopsia (no color) | #717171 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #537398
#537398
oklch(54.6% 0.069 252.6)
- #896A42
#896A42
oklch(54.6% 0.069 72.6)
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 #537398, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.012
- Metallic Blue #4F738E ΔE 0.017
- Stormy Blue #507B9C ΔE 0.022
- Cerulean #457B9D ΔE 0.025
- Muted Blue #3B719F ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.033
- Grey Blue #647D8E ΔE 0.044
- French Blue #436BAD ΔE 0.049
Use #537398 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.