#597397
Closest named color: Dull Blue (#49759C). oklch(55% 0.064 256.6), rgb(89, 115, 151).
Aa
White text reads best on this color (4.85:1).
About this color
#597397 is a medium-dark, muted blue. In OKLCH its lightness is 55%, its chroma 0.064 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.019 away. White text reads best on it, at 4.85:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.32:1 |
| White text | 4.85:1 |
Values
| HEX | #597397 |
| RGB | rgb(89, 115, 151) |
| HSL | hsl(215, 26%, 47%) |
| OKLCH | oklch(55% 0.064 256.6) |
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 #597397 | 4.85:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #597397 | 4.32:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #597397 text on white | 4.85:1 | AA | Lc 73.6 | Content text, not long reading |
| #597397 text on black | 4.32:1 | AA large text | Lc -28.1 | Dividers and decoration only |
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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D2DAE4
oklch(88.5% 0.016 253.9)
-
Step 300
300
#B5C2D4
oklch(81% 0.029 256.5)
-
Step 400
400
#8EA2BE
oklch(70.6% 0.047 256.8)
-
Step 500
500
#728BAD
oklch(63% 0.059 256.2)
-
Step 600
600 (this color)
#597397
oklch(55% 0.064 256.6)
-
Step 700
700
#4B6283
oklch(49.1% 0.06 257.4)
-
Step 800
800
#3D506A
oklch(42.7% 0.05 256.4)
-
Step 900
900
#344256
oklch(37.5% 0.039 257.3)
-
Step 950
950
#1F2732
oklch(27% 0.024 256.4)
#597397 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) | #667599 | 0.019 |
| Deuteranopia (no green cones) | #5F6F96 | 0.013 |
| Tritanopia (no blue cones) | #437B7F | 0.057 |
| Achromatopsia (no color) | #717171 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #597397
#597397
oklch(55% 0.064 256.6)
- #876D46
#876D46
oklch(55.1% 0.064 76.9)
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 #597397, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.019
- Metallic Blue #4F738E ΔE 0.020
- Stormy Blue #507B9C ΔE 0.023
- Cerulean #457B9D ΔE 0.029
- Muted Blue #3B719F ΔE 0.036
- Flat Blue #3C73A8 ΔE 0.040
- Grey Blue #647D8E ΔE 0.040
- Battleship Gray #6C757D ΔE 0.049
Use #597397 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.