#658991
Closest named color: Steel Grey (#6F828A). oklch(60.6% 0.042 212.9), rgb(101, 137, 145).
Aa
Black text reads best on this color (5.54:1).
About this color
#658991 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.042 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Grey (#6F828A), ΔE 0.022 away. Black text reads best on it, at 5.54:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Steel Grey (#6F828A) |
| Black text | 5.54:1 |
| White text | 3.79:1 |
Values
| HEX | #658991 |
| RGB | rgb(101, 137, 145) |
| HSL | hsl(191, 18%, 48%) |
| OKLCH | oklch(60.6% 0.042 212.9) |
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 #658991 | 3.79:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #658991 | 5.54:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #658991 text on white | 3.79:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #658991 text on black | 5.54:1 | AA | Lc -36.3 | 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
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D1DBDD
oklch(88.4% 0.011 211)
-
Step 300
300
#B2C4C8
oklch(80.8% 0.02 212.6)
-
Step 400
400
#8AA6AD
oklch(70.6% 0.033 214.6)
-
Step 500
500 (this color)
#658991
oklch(60.6% 0.042 212.9)
-
Step 600
600
#547B83
oklch(55.7% 0.045 211.8)
-
Step 700
700
#44676F
oklch(49% 0.042 213.6)
-
Step 800
800
#38545A
oklch(42.6% 0.035 212.5)
-
Step 900
900
#31464A
oklch(37.8% 0.027 210.6)
-
Step 950
950
#1D292B
oklch(27.1% 0.017 208.8)
#658991 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) | #838692 | 0.040 |
| Deuteranopia (no green cones) | #7B8191 | 0.035 |
| Tritanopia (no blue cones) | #568D8B | 0.024 |
| Achromatopsia (no color) | #838383 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #658991
#658991
oklch(60.6% 0.042 212.9)
- #997972
#997972
oklch(60.5% 0.042 32.5)
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 #658991, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Grey #6F828A ΔE 0.022
- Steel #738595 ΔE 0.023
- Light Slate Gray #778899 ΔE 0.028
- Slate Gray #708090 ΔE 0.028
- Grey Blue #647D8E ΔE 0.035
- Blue Grey #758DA3 ΔE 0.036
- Battleship Grey #6B7C85 ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.042
Use #658991 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.