#507291
Closest named color: Metallic Blue (#4F738E). oklch(53.9% 0.063 246.8), rgb(80, 114, 145).
Aa
White text reads best on this color (5.05:1).
About this color
#507291 is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.063 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.007 away. White text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #507291 |
| RGB | rgb(80, 114, 145) |
| HSL | hsl(209, 29%, 44%) |
| OKLCH | oklch(53.9% 0.063 246.8) |
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 #507291 | 5.05:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #507291 | 4.15:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #507291 text on white | 5.05:1 | AA | Lc 74.8 | Content text, not long reading |
| #507291 text on black | 4.15:1 | AA large text | Lc -26.9 | 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
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D1DAE3
oklch(88.4% 0.016 248)
-
Step 300
300
#B3C3D2
oklch(81% 0.028 246.4)
-
Step 400
400
#8AA4BC
oklch(70.7% 0.046 246.3)
-
Step 500
500
#6D8DAB
oklch(63% 0.058 247.1)
-
Step 600
600 (this color)
#507291
oklch(53.9% 0.063 246.8)
-
Step 700
700
#456480
oklch(49.1% 0.058 246.6)
-
Step 800
800
#395268
oklch(42.8% 0.048 245.8)
-
Step 900
900
#314455
oklch(37.8% 0.038 246)
-
Step 950
950
#1D2832
oklch(27.1% 0.024 246.3)
#507291 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) | #657292 | 0.027 |
| Deuteranopia (no green cones) | #5D6C90 | 0.022 |
| Tritanopia (no blue cones) | #36797C | 0.053 |
| Achromatopsia (no color) | #6F6F6F | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #507291
#507291
oklch(53.9% 0.063 246.8)
- #876746
#876746
oklch(53.8% 0.063 66.7)
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 #507291, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.007
- Dull Blue #49759C ΔE 0.018
- Stormy Blue #507B9C ΔE 0.028
- Cerulean #457B9D ΔE 0.028
- Muted Blue #3B719F ΔE 0.031
- Flat Blue #3C73A8 ΔE 0.040
- Grey Blue #647D8E ΔE 0.045
- Sea Blue #047495 ΔE 0.049
Use #507291 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.