#258FD6
Closest named color: Water Blue (#0E87CC). oklch(62.6% 0.141 244), rgb(37, 143, 214).
Aa
Black text reads best on this color (5.97:1).
About this color
#258FD6 is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.141 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.028 away. Black text reads best on it, at 5.97:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.97:1 |
| White text | 3.51:1 |
Values
| HEX | #258FD6 |
| RGB | rgb(37, 143, 214) |
| HSL | hsl(204, 71%, 49%) |
| OKLCH | oklch(62.6% 0.141 244) |
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 #258FD6 | 3.51:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #258FD6 | 5.97:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #258FD6 text on white | 3.51:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #258FD6 text on black | 5.97:1 | AA | Lc -39.5 | 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 500.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF7
oklch(93.7% 0.02 243.4)
-
Step 200
200
#C5DDF1
oklch(88.6% 0.038 243.3)
-
Step 300
300
#9BC6EA
oklch(80.8% 0.069 244)
-
Step 400
400
#60A8E0
oklch(70.7% 0.11 243.7)
-
Step 500
500 (this color)
#258FD6
oklch(62.6% 0.141 244)
-
Step 600
600
#0079BD
oklch(55.5% 0.138 244.2)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#02456E
oklch(37.6% 0.092 244.1)
-
Step 950
950
#072941
oklch(27.1% 0.059 244.2)
#258FD6 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) | #6D91D9 | 0.060 |
| Deuteranopia (no green cones) | #5582D5 | 0.045 |
| Tritanopia (no blue cones) | #00A0A9 | 0.096 |
| Achromatopsia (no color) | #898989 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #258FD6
#258FD6
oklch(62.6% 0.141 244)
- #C17204
#C17204
oklch(62.5% 0.14 63.9)
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 #258FD6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.028
- Dark Sky Blue #448EE4 ΔE 0.030
- Chefchaouen Blue #4895EF ΔE 0.048
- Cool Blue #4984B8 ΔE 0.050
- Steel Blue #4682B4 ΔE 0.056
- Blue NCS #118AB2 ΔE 0.057
- Faded Blue #658CBB ΔE 0.060
- Dodger Blue #1E90FF ΔE 0.062
Use #258FD6 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.