#598C9C
Closest named color: Steel (#738595). oklch(61% 0.06 219.8), rgb(89, 140, 156).
Aa
Black text reads best on this color (5.65:1).
About this color
#598C9C is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.060 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.034 away. Black text reads best on it, at 5.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.65:1 |
| White text | 3.71:1 |
Values
| HEX | #598C9C |
| RGB | rgb(89, 140, 156) |
| HSL | hsl(194, 27%, 48%) |
| OKLCH | oklch(61% 0.06 219.8) |
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 #598C9C | 3.71:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #598C9C | 5.65:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #598C9C text on white | 3.71:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #598C9C text on black | 5.65:1 | 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
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#ADC5CE
oklch(80.8% 0.029 222.4)
-
Step 400
400
#80A8B5
oklch(70.7% 0.047 219.8)
-
Step 500
500 (this color)
#598C9C
oklch(61% 0.06 219.8)
-
Step 600
600
#447C8E
oklch(55.5% 0.065 221)
-
Step 700
700
#356978
oklch(49.1% 0.06 218.9)
-
Step 800
800
#2D5662
oklch(42.8% 0.05 219)
-
Step 900
900
#294750
oklch(37.8% 0.039 219)
-
Step 950
950
#18292F
oklch(26.9% 0.025 222.2)
#598C9C 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) | #82899D | 0.051 |
| Deuteranopia (no green cones) | #78819C | 0.047 |
| Tritanopia (no blue cones) | #3C9291 | 0.038 |
| Achromatopsia (no color) | #858585 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #598C9C
#598C9C
oklch(61% 0.06 219.8)
- #A37768
#A37768
oklch(60.9% 0.06 39.6)
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 #598C9C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.034
- Light Slate Gray #778899 ΔE 0.036
- Dusty Blue #5A86AD ΔE 0.036
- Blue Grey #758DA3 ΔE 0.036
- Steel Grey #6F828A ΔE 0.038
- Slate Gray #708090 ΔE 0.040
- Off Blue #5684AE ΔE 0.042
- Grey Blue #647D8E ΔE 0.043
Use #598C9C 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.