#648C97
Closest named color: Steel (#738595). oklch(61.5% 0.047 216.7), rgb(100, 140, 151).
Aa
Black text reads best on this color (5.73:1).
About this color
#648C97 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.047 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.025 away. Black text reads best on it, at 5.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.73:1 |
| White text | 3.65:1 |
Values
| HEX | #648C97 |
| RGB | rgb(100, 140, 151) |
| HSL | hsl(193, 20%, 49%) |
| OKLCH | oklch(61.5% 0.047 216.7) |
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 #648C97 | 3.65:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #648C97 | 5.73:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #648C97 text on white | 3.65:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #648C97 text on black | 5.73:1 | AA | Lc -37.5 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D0DBDF
oklch(88.4% 0.013 221.4)
-
Step 300
300
#B1C5CA
oklch(81% 0.023 214.4)
-
Step 400
400
#87A7B0
oklch(70.7% 0.038 216.7)
-
Step 500
500 (this color)
#648C97
oklch(61.5% 0.047 216.7)
-
Step 600
600
#507B87
oklch(55.6% 0.051 217.3)
-
Step 700
700
#406872
oklch(49.2% 0.048 215.4)
-
Step 800
800
#35555D
oklch(42.8% 0.04 215.3)
-
Step 900
900
#2F464C
oklch(37.8% 0.03 215.8)
-
Step 950
950
#1C292D
oklch(27.1% 0.019 218.7)
#648C97 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) | #848998 | 0.042 |
| Deuteranopia (no green cones) | #7C8397 | 0.038 |
| Tritanopia (no blue cones) | #52908F | 0.028 |
| Achromatopsia (no color) | #868686 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648C97
#648C97
oklch(61.5% 0.047 216.7)
- #9F7B71
#9F7B71
oklch(61.5% 0.048 36.1)
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 #648C97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.025
- Light Slate Gray #778899 ΔE 0.026
- Blue Grey #758DA3 ΔE 0.029
- Steel Grey #6F828A ΔE 0.030
- Slate Gray #708090 ΔE 0.034
- Silver Lake Blue #778DA9 ΔE 0.038
- Grey Blue #647D8E ΔE 0.042
- Dusty Teal #4C9085 ΔE 0.043
Use #648C97 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.