#638993
Closest named color: Steel (#738595). oklch(60.5% 0.045 215.8), rgb(99, 137, 147).
Aa
Black text reads best on this color (5.53:1).
About this color
#638993 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.045 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.023 away. Black text reads best on it, at 5.53:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.53:1 |
| White text | 3.79:1 |
Values
| HEX | #638993 |
| RGB | rgb(99, 137, 147) |
| HSL | hsl(193, 20%, 48%) |
| OKLCH | oklch(60.5% 0.045 215.8) |
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 #638993 | 3.79:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #638993 | 5.53:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #638993 text on white | 3.79:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #638993 text on black | 5.53:1 | AA | Lc -36.2 | 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 500.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D1DBDE
oklch(88.5% 0.012 217.6)
-
Step 300
300
#B2C4CA
oklch(80.8% 0.021 219.7)
-
Step 400
400
#89A7AF
oklch(70.8% 0.035 215.7)
-
Step 500
500 (this color)
#638993
oklch(60.5% 0.045 215.8)
-
Step 600
600
#527B86
oklch(55.7% 0.049 216.4)
-
Step 700
700
#426771
oklch(49% 0.045 216.7)
-
Step 800
800
#37545C
oklch(42.6% 0.037 216.9)
-
Step 900
900
#30464B
oklch(37.8% 0.029 213.3)
-
Step 950
950
#1C292C
oklch(27% 0.019 213.5)
#638993 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) | #828694 | 0.041 |
| Deuteranopia (no green cones) | #7A8093 | 0.038 |
| Tritanopia (no blue cones) | #528D8C | 0.026 |
| Achromatopsia (no color) | #838383 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #638993
#638993
oklch(60.5% 0.045 215.8)
- #9B7970
#9B7970
oklch(60.6% 0.045 35.3)
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 #638993, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.023
- Steel Grey #6F828A ΔE 0.023
- Light Slate Gray #778899 ΔE 0.028
- Slate Gray #708090 ΔE 0.028
- Grey Blue #647D8E ΔE 0.034
- Blue Grey #758DA3 ΔE 0.036
- Battleship Grey #6B7C85 ΔE 0.037
- Dusty Teal #4C9085 ΔE 0.042
Use #638993 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.