#658A9B
Closest named color: Steel (#738595). oklch(61.2% 0.049 228), rgb(101, 138, 155).
Aa
Black text reads best on this color (5.66:1).
About this color
#658A9B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.049 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.021 away. Black text reads best on it, at 5.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.66:1 |
| White text | 3.70:1 |
Values
| HEX | #658A9B |
| RGB | rgb(101, 138, 155) |
| HSL | hsl(199, 21%, 50%) |
| OKLCH | oklch(61.2% 0.049 228) |
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 #658A9B | 3.70:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #658A9B | 5.66:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #658A9B text on white | 3.70:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #658A9B text on black | 5.66:1 | AA | Lc -37.0 | 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
#D1DBE0
oklch(88.5% 0.013 228.9)
-
Step 300
300
#B2C4CD
oklch(80.9% 0.023 229.2)
-
Step 400
400
#89A6B3
oklch(70.8% 0.037 226.8)
-
Step 500
500 (this color)
#658A9B
oklch(61.2% 0.049 228)
-
Step 600
600
#527A8C
oklch(55.7% 0.053 227.9)
-
Step 700
700
#426677
oklch(49% 0.049 229.3)
-
Step 800
800
#375461
oklch(42.8% 0.041 227.8)
-
Step 900
900
#30454F
oklch(37.7% 0.031 229)
-
Step 950
950
#1C292E
oklch(27.1% 0.02 223.6)
#658A9B 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) | #81889C | 0.037 |
| Deuteranopia (no green cones) | #79829B | 0.033 |
| Tritanopia (no blue cones) | #528F8F | 0.034 |
| Achromatopsia (no color) | #858585 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #658A9B
#658A9B
oklch(61.2% 0.049 228)
- #9D7B6B
#9D7B6B
oklch(61.1% 0.049 46.5)
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 #658A9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.021
- Light Slate Gray #778899 ΔE 0.022
- Blue Grey #758DA3 ΔE 0.026
- Steel Grey #6F828A ΔE 0.029
- Slate Gray #708090 ΔE 0.030
- Silver Lake Blue #778DA9 ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.035
- Grey Blue #647D8E ΔE 0.038
Use #658A9B 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.