#63797F
Closest named color: Battleship Gray (#6C757D). oklch(56.1% 0.027 216.1), rgb(99, 121, 127).
Aa
White text reads best on this color (4.59:1).
About this color
#63797F is a medium-dark close to neutral grey. In OKLCH its lightness is 56%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Battleship Gray (#6C757D), ΔE 0.015 away. White text reads best on it, at 4.59:1.
| Hue family | Neutrals |
| Lightness | medium-dark (56%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.57:1 |
| White text | 4.59:1 |
Values
| HEX | #63797F |
| RGB | rgb(99, 121, 127) |
| HSL | hsl(193, 12%, 44%) |
| OKLCH | oklch(56.1% 0.027 216.1) |
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 #63797F | 4.59:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #63797F | 4.57:1 | AA | Lc 32.2 | Non-text elements, placeholder text |
| #63797F text on white | 4.59:1 | AA | Lc 71.9 | Content text, not long reading |
| #63797F text on black | 4.57:1 | AA | Lc -29.8 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D4DADC
oklch(88.4% 0.007 219.6)
-
Step 300
300
#B8C3C6
oklch(81% 0.013 215.8)
-
Step 400
400
#93A4A8
oklch(70.7% 0.02 213.5)
-
Step 500
500
#798E93
oklch(63.2% 0.025 213.7)
-
Step 600
600 (this color)
#63797F
oklch(56.1% 0.027 216.1)
-
Step 700
700
#51656A
oklch(49.2% 0.025 214.6)
-
Step 800
800
#425256
oklch(42.6% 0.021 214.6)
-
Step 900
900
#384447
oklch(37.7% 0.016 214.5)
-
Step 950
950
#21282A
oklch(27.1% 0.011 216.9)
#63797F 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) | #75777F | 0.025 |
| Deuteranopia (no green cones) | #70747F | 0.022 |
| Tritanopia (no blue cones) | #5B7B7B | 0.014 |
| Achromatopsia (no color) | #757575 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63797F
#63797F
oklch(56.1% 0.027 216.1)
- #846F6A
#846F6A
oklch(56% 0.028 33.6)
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 #63797F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.015
- Battleship Grey #6B7C85 ΔE 0.017
- Grey Blue #647D8E ΔE 0.023
- Steel Grey #6F828A ΔE 0.034
- Slate Gray #708090 ΔE 0.036
- Metallic Blue #4F738E ΔE 0.042
- Medium Grey #7D7F7C ΔE 0.043
- Stormy Blue #507B9C ΔE 0.047
Use #63797F 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.