#64777B
Closest named color: Battleship Gray (#6C757D). oklch(55.5% 0.023 211.8), rgb(100, 119, 123).
Aa
White text reads best on this color (4.70:1).
About this color
#64777B is a medium-dark close to neutral grey. In OKLCH its lightness is 56%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Battleship Gray (#6C757D), ΔE 0.013 away. White text reads best on it, at 4.70:1.
| Hue family | Neutrals |
| Lightness | medium-dark (56%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.46:1 |
| White text | 4.70:1 |
Values
| HEX | #64777B |
| RGB | rgb(100, 119, 123) |
| HSL | hsl(190, 10%, 44%) |
| OKLCH | oklch(55.5% 0.023 211.8) |
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 #64777B | 4.70:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #64777B | 4.46:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #64777B text on white | 4.70:1 | AA | Lc 72.7 | Content text, not long reading |
| #64777B text on black | 4.46:1 | AA large text | Lc -29.0 | 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
#E8EAEB
oklch(93.6% 0.003 228.8)
-
Step 200
200
#D5DADB
oklch(88.5% 0.006 211)
-
Step 300
300
#B9C2C4
oklch(80.8% 0.01 212.5)
-
Step 400
400
#95A4A7
oklch(70.8% 0.018 211)
-
Step 500
500
#7B8D91
oklch(63% 0.022 212.6)
-
Step 600
600 (this color)
#64777B
oklch(55.5% 0.023 211.8)
-
Step 700
700
#536468
oklch(49% 0.022 213.5)
-
Step 800
800
#445255
oklch(42.8% 0.018 212.1)
-
Step 900
900
#394446
oklch(37.8% 0.015 209.8)
-
Step 950
950
#222829
oklch(27.1% 0.009 208.7)
#64777B 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) | #73757B | 0.021 |
| Deuteranopia (no green cones) | #6F727B | 0.020 |
| Tritanopia (no blue cones) | #5D7978 | 0.013 |
| Achromatopsia (no color) | #747474 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64777B
#64777B
oklch(55.5% 0.023 211.8)
- #806E6B
#806E6B
oklch(55.4% 0.023 29)
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 #64777B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.013
- Battleship Grey #6B7C85 ΔE 0.022
- Grey Blue #647D8E ΔE 0.030
- Steel Grey #6F828A ΔE 0.039
- Dim Gray #696969 ΔE 0.042
- Slate Gray #708090 ΔE 0.042
- Metallic Blue #4F738E ΔE 0.044
- Medium Grey #7D7F7C ΔE 0.045
Use #64777B 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.