#588C91
Closest named color: Dusty Teal (#4C9085). oklch(60.5% 0.056 203.5), rgb(88, 140, 145).
Aa
Black text reads best on this color (5.57:1).
About this color
#588C91 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.056 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.028 away. Black text reads best on it, at 5.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.57:1 |
| White text | 3.76:1 |
Values
| HEX | #588C91 |
| RGB | rgb(88, 140, 145) |
| HSL | hsl(185, 24%, 46%) |
| OKLCH | oklch(60.5% 0.056 203.5) |
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 #588C91 | 3.76:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #588C91 | 5.57:1 | AA | Lc 38.9 | Non-text elements, placeholder text |
| #588C91 text on white | 3.76:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #588C91 text on black | 5.57:1 | AA | Lc -36.5 | 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
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CEDCDE
oklch(88.4% 0.015 207.1)
-
Step 300
300
#ADC6C9
oklch(80.9% 0.027 205.4)
-
Step 400
400
#81A9AD
oklch(70.7% 0.044 203.9)
-
Step 500
500 (this color)
#588C91
oklch(60.5% 0.056 203.5)
-
Step 600
600
#457E83
oklch(55.6% 0.06 202.9)
-
Step 700
700
#366A6F
oklch(49% 0.056 203.7)
-
Step 800
800
#2D575B
oklch(42.8% 0.047 203.6)
-
Step 900
900
#29474A
oklch(37.6% 0.036 203.9)
-
Step 950
950
#192A2C
oklch(27.1% 0.023 205.2)
#588C91 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) | #858891 | 0.057 |
| Deuteranopia (no green cones) | #7B8091 | 0.053 |
| Tritanopia (no blue cones) | #40908D | 0.026 |
| Achromatopsia (no color) | #838383 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #588C91
#588C91
oklch(60.5% 0.056 203.5)
- #A17572
#A17572
oklch(60.6% 0.056 23.3)
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 #588C91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.028
- Steel Grey #6F828A ΔE 0.036
- Steel #738595 ΔE 0.038
- Sea #3C9992 ΔE 0.042
- Light Slate Gray #778899 ΔE 0.042
- Slate Gray #708090 ΔE 0.042
- Grey Blue #647D8E ΔE 0.044
- Teal Green #0A9396 ΔE 0.046
Use #588C91 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.