#64837C
Closest named color: Steel Grey (#6F828A). oklch(58.4% 0.037 179.6), rgb(100, 131, 124).
Aa
Black text reads best on this color (5.07:1).
About this color
#64837C is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.037 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Grey (#6F828A), ΔE 0.028 away. Black text reads best on it, at 5.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Steel Grey (#6F828A) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #64837C |
| RGB | rgb(100, 131, 124) |
| HSL | hsl(166, 13%, 45%) |
| OKLCH | oklch(58.4% 0.037 179.6) |
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 #64837C | 4.13:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #64837C | 5.07:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #64837C text on white | 4.13:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #64837C text on black | 5.07:1 | AA | Lc -33.2 | Non-text elements, placeholder text |
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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D3DBD9
oklch(88.5% 0.009 179.6)
-
Step 300
300
#B6C4C1
oklch(80.9% 0.016 181.7)
-
Step 400
400
#90A6A1
oklch(70.7% 0.026 180.3)
-
Step 500
500
#74918A
oklch(63.2% 0.034 178.8)
-
Step 600
600 (this color)
#64837C
oklch(58.4% 0.037 179.6)
-
Step 700
700
#4C6761
oklch(49% 0.033 179.6)
-
Step 800
800
#3E544F
oklch(42.6% 0.028 179.4)
-
Step 900
900
#354642
oklch(37.8% 0.023 179)
-
Step 950
950
#1F2927
oklch(27.1% 0.014 181.6)
#64837C 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) | #807F7C | 0.039 |
| Deuteranopia (no green cones) | #7A7B7D | 0.037 |
| Tritanopia (no blue cones) | #5C8481 | 0.011 |
| Achromatopsia (no color) | #7D7D7D | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64837C
#64837C
oklch(58.4% 0.037 179.6)
- #8F737B
#8F737B
oklch(58.5% 0.037 359.3)
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 #64837C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Grey #6F828A ΔE 0.028
- Battleship Grey #6B7C85 ΔE 0.030
- Medium Grey #7D7F7C ΔE 0.035
- Grey Blue #647D8E ΔE 0.038
- Slate Gray #708090 ΔE 0.040
- Gray #808080 ΔE 0.040
- Dusty Teal #4C9085 ΔE 0.041
- Battleship Gray #6C757D ΔE 0.043
Use #64837C 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.