#648387
Closest named color: Steel Grey (#6F828A). oklch(58.8% 0.036 206), rgb(100, 131, 135).
Aa
Black text reads best on this color (5.13:1).
About this color
#648387 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 59%, its chroma 0.036 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Grey (#6F828A), ΔE 0.016 away. Black text reads best on it, at 5.13:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Steel Grey (#6F828A) |
| Black text | 5.13:1 |
| White text | 4.08:1 |
Values
| HEX | #648387 |
| RGB | rgb(100, 131, 135) |
| HSL | hsl(187, 15%, 46%) |
| OKLCH | oklch(58.8% 0.036 206) |
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 #648387 | 4.08:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #648387 | 5.13:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #648387 text on white | 4.08:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #648387 text on black | 5.13:1 | AA | Lc -33.6 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D3DBDC
oklch(88.6% 0.009 205.9)
-
Step 300
300
#B5C4C6
oklch(80.9% 0.017 206.4)
-
Step 400
400
#8FA5A8
oklch(70.6% 0.025 206.6)
-
Step 500
500
#739093
oklch(63.2% 0.033 204.1)
-
Step 600
600 (this color)
#648387
oklch(58.8% 0.036 206)
-
Step 700
700
#4B666A
oklch(49% 0.032 207.5)
-
Step 800
800
#3D5456
oklch(42.8% 0.028 202.8)
-
Step 900
900
#344547
oklch(37.7% 0.022 205.2)
-
Step 950
950
#1F282A
oklch(26.9% 0.013 212.7)
#648387 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) | #7E8087 | 0.035 |
| Deuteranopia (no green cones) | #787C87 | 0.032 |
| Tritanopia (no blue cones) | #598684 | 0.017 |
| Achromatopsia (no color) | #7E7E7E | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648387
#648387
oklch(58.8% 0.036 206)
- #917572
#917572
oklch(58.8% 0.036 25.3)
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 #648387, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Grey #6F828A ΔE 0.016
- Battleship Grey #6B7C85 ΔE 0.021
- Grey Blue #647D8E ΔE 0.024
- Slate Gray #708090 ΔE 0.025
- Steel #738595 ΔE 0.031
- Medium Grey #7D7F7C ΔE 0.035
- Gray #808080 ΔE 0.038
- Battleship Gray #6C757D ΔE 0.039
Use #648387 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.