#597EAD
Closest named color: Off Blue (#5684AE). oklch(58.5% 0.084 254.8), rgb(89, 126, 173).
Aa
Black text reads best on this color (5.01:1).
About this color
#597EAD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.084 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.017 away. Black text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #597EAD |
| RGB | rgb(89, 126, 173) |
| HSL | hsl(214, 34%, 51%) |
| OKLCH | oklch(58.5% 0.084 254.8) |
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 #597EAD | 4.18:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #597EAD | 5.01:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #597EAD text on white | 4.18:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #597EAD text on black | 5.01:1 | AA | Lc -32.9 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D0DAE7
oklch(88.5% 0.021 254.9)
-
Step 300
300
#B1C2D9
oklch(80.8% 0.038 256)
-
Step 400
400
#87A3C6
oklch(70.7% 0.06 254.2)
-
Step 500
500
#698CB8
oklch(63.1% 0.078 254.5)
-
Step 600
600 (this color)
#597EAD
oklch(58.5% 0.084 254.8)
-
Step 700
700
#41628C
oklch(49% 0.078 255)
-
Step 800
800
#365072
oklch(42.6% 0.065 255.5)
-
Step 900
900
#2F435C
oklch(37.7% 0.05 254.4)
-
Step 950
950
#1C2736
oklch(27% 0.032 256.3)
#597EAD 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) | #6C80AF | 0.025 |
| Deuteranopia (no green cones) | #6278AC | 0.019 |
| Tritanopia (no blue cones) | #34888E | 0.074 |
| Achromatopsia (no color) | #7C7C7C | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #597EAD
#597EAD
oklch(58.5% 0.084 254.8)
- #997440
#997440
oklch(58.4% 0.083 74.3)
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 #597EAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.017
- Steel Blue #4682B4 ΔE 0.021
- Dusty Blue #5A86AD ΔE 0.023
- Cool Blue #4984B8 ΔE 0.024
- Stormy Blue #507B9C ΔE 0.029
- Cerulean #457B9D ΔE 0.035
- Dull Blue #49759C ΔE 0.040
- Faded Blue #658CBB ΔE 0.045
Use #597EAD 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.