#597EA6
Closest named color: Off Blue (#5684AE). oklch(58.2% 0.075 251.1), rgb(89, 126, 166).
Aa
Black text reads best on this color (4.95:1).
About this color
#597EA6 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.075 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.018 away. Black text reads best on it, at 4.95:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 4.95:1 |
| White text | 4.23:1 |
Values
| HEX | #597EA6 |
| RGB | rgb(89, 126, 166) |
| HSL | hsl(211, 30%, 50%) |
| OKLCH | oklch(58.2% 0.075 251.1) |
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 #597EA6 | 4.23:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #597EA6 | 4.95:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #597EA6 text on white | 4.23:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #597EA6 text on black | 4.95:1 | AA | Lc -32.5 | 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 600.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D0DAE5
oklch(88.4% 0.019 250.6)
-
Step 300
300
#B1C3D6
oklch(81% 0.033 249.7)
-
Step 400
400
#88A4C2
oklch(70.8% 0.054 250.4)
-
Step 500
500
#6A8DB2
oklch(63.1% 0.068 250.3)
-
Step 600
600 (this color)
#597EA6
oklch(58.2% 0.075 251.1)
-
Step 700
700
#426387
oklch(49% 0.07 251.4)
-
Step 800
800
#37516E
oklch(42.7% 0.058 251.9)
-
Step 900
900
#304359
oklch(37.7% 0.045 252.6)
-
Step 950
950
#1C2734
oklch(26.9% 0.029 253)
#597EA6 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) | #6E7FA8 | 0.027 |
| Deuteranopia (no green cones) | #6578A5 | 0.021 |
| Tritanopia (no blue cones) | #39878C | 0.064 |
| Achromatopsia (no color) | #7B7B7B | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #597EA6
#597EA6
oklch(58.2% 0.075 251.1)
- #977348
#977348
oklch(58.1% 0.075 70.4)
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 #597EA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.018
- Stormy Blue #507B9C ΔE 0.020
- Dusty Blue #5A86AD ΔE 0.023
- Steel Blue #4682B4 ΔE 0.027
- Cerulean #457B9D ΔE 0.028
- Cool Blue #4984B8 ΔE 0.031
- Dull Blue #49759C ΔE 0.035
- Grey Blue #647D8E ΔE 0.038
Use #597EA6 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.