#598B8F
Closest named color: Dusty Teal (#4C9085). oklch(60.3% 0.054 202.3), rgb(89, 139, 143).
Aa
Black text reads best on this color (5.51:1).
About this color
#598B8F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.054 and its hue 202°. 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 5.51:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.51:1 |
| White text | 3.80:1 |
Values
| HEX | #598B8F |
| RGB | rgb(89, 139, 143) |
| HSL | hsl(184, 23%, 45%) |
| OKLCH | oklch(60.3% 0.054 202.3) |
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 #598B8F | 3.80:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #598B8F | 5.51:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #598B8F text on white | 3.80:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #598B8F text on black | 5.51:1 | AA | Lc -36.1 | 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
#CFDCDD
oklch(88.5% 0.014 202.4)
-
Step 300
300
#AEC6C8
oklch(80.9% 0.026 202.8)
-
Step 400
400
#82A9AC
oklch(70.7% 0.042 202.1)
-
Step 500
500 (this color)
#598B8F
oklch(60.3% 0.054 202.3)
-
Step 600
600
#477E82
oklch(55.7% 0.059 201.7)
-
Step 700
700
#386A6E
oklch(49.1% 0.054 202.3)
-
Step 800
800
#2F565A
oklch(42.6% 0.045 204.1)
-
Step 900
900
#2A474A
oklch(37.6% 0.035 204.1)
-
Step 950
950
#192A2B
oklch(27.1% 0.023 200.6)
#598B8F 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) | #84878F | 0.055 |
| Deuteranopia (no green cones) | #7A808F | 0.049 |
| Tritanopia (no blue cones) | #438F8C | 0.024 |
| Achromatopsia (no color) | #838383 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #598B8F
#598B8F
oklch(60.3% 0.054 202.3)
- #9F7572
#9F7572
oklch(60.3% 0.053 23.4)
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 #598B8F, 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 0.033
- Steel #738595 ΔE 0.038
- Slate Gray #708090 ΔE 0.041
- Grey Blue #647D8E ΔE 0.042
- Light Slate Gray #778899 ΔE 0.042
- Battleship Grey #6B7C85 ΔE 0.044
- Sea #3C9992 ΔE 0.044
Use #598B8F 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.