#648F93
Closest named color: Light Slate Gray (#778899). oklch(62% 0.047 203.3), rgb(100, 143, 147).
Aa
Black text reads best on this color (5.89:1).
About this color
#648F93 is a medium-light, muted teal or cyan. In OKLCH its lightness is 62%, its chroma 0.047 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.034 away. Black text reads best on it, at 5.89:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (62%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.89:1 |
| White text | 3.56:1 |
Values
| HEX | #648F93 |
| RGB | rgb(100, 143, 147) |
| HSL | hsl(185, 19%, 48%) |
| OKLCH | oklch(62% 0.047 203.3) |
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 #648F93 | 3.56:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #648F93 | 5.89:1 | AA | Lc 40.9 | Non-text elements, placeholder text |
| #648F93 text on white | 3.56:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #648F93 text on black | 5.89:1 | AA | Lc -38.5 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D0DCDD
oklch(88.6% 0.013 202.9)
-
Step 300
300
#B0C5C7
oklch(80.8% 0.023 203.7)
-
Step 400
400
#86A8AB
oklch(70.7% 0.037 203)
-
Step 500
500 (this color)
#648F93
oklch(62% 0.047 203.3)
-
Step 600
600
#4E7C81
oklch(55.5% 0.051 204.5)
-
Step 700
700
#3E696D
oklch(49.1% 0.048 203.3)
-
Step 800
800
#345659
oklch(42.8% 0.04 202.9)
-
Step 900
900
#2E4749
oklch(37.8% 0.031 202.3)
-
Step 950
950
#1B292B
oklch(26.9% 0.019 207.1)
#648F93 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) | #898B93 | 0.048 |
| Deuteranopia (no green cones) | #808593 | 0.044 |
| Tritanopia (no blue cones) | #539290 | 0.021 |
| Achromatopsia (no color) | #888888 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648F93
#648F93
oklch(62% 0.047 203.3)
- #A17B79
#A17B79
oklch(61.9% 0.048 22)
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 #648F93, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.034
- Steel #738595 ΔE 0.034
- Blue Grey #758DA3 ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.036
- Steel Grey #6F828A ΔE 0.037
- Cadet Blue #5F9EA0 ΔE 0.042
- Grey Teal #5E9B8A ΔE 0.042
- Slate Gray #708090 ΔE 0.044
Use #648F93 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.