#637082
Closest named color: Battleship Gray (#6C757D). oklch(54.1% 0.032 256.5), rgb(99, 112, 130).
Aa
White text reads best on this color (5.03:1).
About this color
#637082 is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.032 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.023 away. White text reads best on it, at 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #637082 |
| RGB | rgb(99, 112, 130) |
| HSL | hsl(215, 14%, 45%) |
| OKLCH | oklch(54.1% 0.032 256.5) |
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 #637082 | 5.03:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #637082 | 4.17:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #637082 text on white | 5.03:1 | AA | Lc 74.8 | Content text, not long reading |
| #637082 text on black | 4.17:1 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9DE
oklch(88.4% 0.008 260.7)
-
Step 300
300
#BBC1CA
oklch(80.9% 0.014 258.4)
-
Step 400
400
#97A1AF
oklch(70.6% 0.023 256.8)
-
Step 500
500
#7E8B9C
oklch(63.2% 0.03 255.2)
-
Step 600
600 (this color)
#637082
oklch(54.1% 0.032 256.5)
-
Step 700
700
#566272
oklch(49.2% 0.03 255.7)
-
Step 800
800
#46505D
oklch(42.7% 0.025 255.1)
-
Step 900
900
#3B424C
oklch(37.7% 0.02 257.3)
-
Step 950
950
#23272D
oklch(27.1% 0.013 258.4)
#637082 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) | #6A7183 | 0.011 |
| Deuteranopia (no green cones) | #676E82 | 0.008 |
| Tritanopia (no blue cones) | #5B7476 | 0.028 |
| Achromatopsia (no color) | #6F6F6F | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #637082
#637082
oklch(54.1% 0.032 256.5)
- #7A6D5A
#7A6D5A
oklch(54.1% 0.033 77.3)
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 #637082, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.023
- Metallic Blue #4F738E ΔE 0.029
- Battleship Grey #6B7C85 ΔE 0.038
- Grey Blue #647D8E ΔE 0.038
- Dim Gray #696969 ΔE 0.038
- Stormy Blue #507B9C ΔE 0.046
- Slate #516572 ΔE 0.047
- Dull Blue #49759C ΔE 0.047
Use #637082 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.