#239ACD
Closest named color: Water Blue (#0E87CC). oklch(64.7% 0.124 232.8), rgb(35, 154, 205).
Aa
Black text reads best on this color (6.57:1).
About this color
#239ACD is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.124 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.056 away. Black text reads best on it, at 6.57:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 6.57:1 |
| White text | 3.19:1 |
Values
| HEX | #239ACD |
| RGB | rgb(35, 154, 205) |
| HSL | hsl(198, 71%, 47%) |
| OKLCH | oklch(64.7% 0.124 232.8) |
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 #239ACD | 3.19:1 | AA large text | Lc -64.1 | Content text, not long reading |
| Black text on #239ACD | 6.57:1 | AA | Lc 45.4 | Large or bold text, headings |
| #239ACD text on white | 3.19:1 | AA large text | Lc 58.7 | Large or bold text, headings |
| #239ACD text on black | 6.57:1 | AA | Lc -43.1 | 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
#F0F6FA
oklch(97% 0.008 236.6)
-
Step 100
100
#DFECF4
oklch(93.6% 0.018 234.5)
-
Step 200
200
#C4DEEC
oklch(88.6% 0.034 231.2)
-
Step 300
300
#9AC8E2
oklch(80.9% 0.061 233.3)
-
Step 400
400
#5DABD3
oklch(70.7% 0.097 232.7)
-
Step 500
500 (this color)
#239ACD
oklch(64.7% 0.124 232.8)
-
Step 600
600
#007DAB
oklch(55.5% 0.115 233.2)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950
#052A3B
oklch(26.9% 0.051 233.3)
#239ACD 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) | #8099CF | 0.079 |
| Deuteranopia (no green cones) | #6A89CC | 0.066 |
| Tritanopia (no blue cones) | #00A8AB | 0.075 |
| Achromatopsia (no color) | #909090 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #239ACD
#239ACD
oklch(64.7% 0.124 232.8)
- #C8773F
#C8773F
oklch(64.7% 0.124 53.2)
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 #239ACD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.056
- Dark Sky Blue #448EE4 ΔE 0.056
- Blue NCS #118AB2 ΔE 0.057
- Faded Blue #658CBB ΔE 0.057
- Chefchaouen Blue #4895EF ΔE 0.062
- Cool Blue #4984B8 ΔE 0.062
- Dusty Blue #5A86AD ΔE 0.068
- Steel Blue #4682B4 ΔE 0.069
Use #239ACD 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.