#599E8F
Closest named color: Dull Teal (#5F9E8F). oklch(64.9% 0.074 178.2), rgb(89, 158, 143).
Aa
Black text reads best on this color (6.71:1).
About this color
#599E8F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.074 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.006 away. Black text reads best on it, at 6.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 6.71:1 |
| White text | 3.12:1 |
Values
| HEX | #599E8F |
| RGB | rgb(89, 158, 143) |
| HSL | hsl(167, 28%, 48%) |
| OKLCH | oklch(64.9% 0.074 178.2) |
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 #599E8F | 3.12:1 | AA large text | Lc -63.6 | Content text, not long reading |
| Black text on #599E8F | 6.71:1 | AA | Lc 45.9 | Large or bold text, headings |
| #599E8F text on white | 3.12:1 | AA large text | Lc 58.2 | Large or bold text, headings |
| #599E8F text on black | 6.71:1 | AA | Lc -43.5 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDED9
oklch(88.6% 0.02 177.4)
-
Step 300
300
#A9C9C1
oklch(81% 0.036 178.5)
-
Step 400
400
#79ADA1
oklch(70.8% 0.058 178.6)
-
Step 500
500 (this color)
#599E8F
oklch(64.9% 0.074 178.2)
-
Step 600
600
#348373
oklch(55.6% 0.081 177.6)
-
Step 700
700
#266F61
oklch(49.2% 0.075 178)
-
Step 800
800
#215A4F
oklch(42.7% 0.062 178.3)
-
Step 900
900
#214A42
oklch(37.7% 0.048 179.1)
-
Step 950
950
#152B26
oklch(26.9% 0.03 177.6)
#599E8F 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) | #99978E | 0.078 |
| Deuteranopia (no green cones) | #8D8E90 | 0.074 |
| Tritanopia (no blue cones) | #3FA099 | 0.022 |
| Achromatopsia (no color) | #929292 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #599E8F
#599E8F
oklch(64.9% 0.074 178.2)
- #B57C8E
#B57C8E
oklch(64.9% 0.075 358.8)
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 #599E8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.006
- Grey Teal #5E9B8A ΔE 0.010
- Cadet Blue #5F9EA0 ΔE 0.027
- Sea #3C9992 ΔE 0.030
- Persian Green #2A9D8F ΔE 0.034
- Dusty Teal #4C9085 ΔE 0.044
- Blue Green #0F9B8E ΔE 0.045
- Greeny Grey #7EA07A ΔE 0.049
Use #599E8F 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.