#588DAC
Closest named color: Dusty Blue (#5A86AD). oklch(61.9% 0.073 235.4), rgb(88, 141, 172).
Aa
Black text reads best on this color (5.82:1).
About this color
#588DAC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.073 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.021 away. Black text reads best on it, at 5.82:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.82:1 |
| White text | 3.60:1 |
Values
| HEX | #588DAC |
| RGB | rgb(88, 141, 172) |
| HSL | hsl(202, 34%, 51%) |
| OKLCH | oklch(61.9% 0.073 235.4) |
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 #588DAC | 3.60:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #588DAC | 5.82:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #588DAC text on white | 3.60:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #588DAC text on black | 5.82:1 | AA | Lc -38.1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDCE5
oklch(88.6% 0.02 233.9)
-
Step 300
300
#ABC5D5
oklch(80.9% 0.036 234.9)
-
Step 400
400
#7EA7C0
oklch(70.7% 0.058 235.4)
-
Step 500
500 (this color)
#588DAC
oklch(61.9% 0.073 235.4)
-
Step 600
600
#407B9C
oklch(55.7% 0.08 235.2)
-
Step 700
700
#326785
oklch(49.1% 0.074 235.8)
-
Step 800
800
#2A546C
oklch(42.6% 0.062 235.8)
-
Step 900
900
#274658
oklch(37.8% 0.048 235.5)
-
Step 950
950
#172933
oklch(27% 0.03 233.8)
#588DAC 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) | #7F8CAE | 0.047 |
| Deuteranopia (no green cones) | #7383AC | 0.040 |
| Tritanopia (no blue cones) | #2F9597 | 0.057 |
| Achromatopsia (no color) | #878787 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #588DAC
#588DAC
oklch(61.9% 0.073 235.4)
- #A87A5A
#A87A5A
oklch(61.8% 0.073 55.7)
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 #588DAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.021
- Off Blue #5684AE ΔE 0.028
- Faded Blue #658CBB ΔE 0.029
- Blue Grey #758DA3 ΔE 0.035
- Silver Lake Blue #778DA9 ΔE 0.036
- Cool Blue #4984B8 ΔE 0.040
- Light Slate Gray #778899 ΔE 0.042
- Steel Blue #4682B4 ΔE 0.043
Use #588DAC 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.