#0259C1
Closest named color: Blue Blue (#2242C7). oklch(48.5% 0.178 258), rgb(2, 89, 193).
Aa
White text reads best on this color (6.55:1).
About this color
#0259C1 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.178 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.053 away. White text reads best on it, at 6.55:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.20:1 |
| White text | 6.55:1 |
Values
| HEX | #0259C1 |
| RGB | rgb(2, 89, 193) |
| HSL | hsl(213, 98%, 38%) |
| OKLCH | oklch(48.5% 0.178 258) |
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 #0259C1 | 6.55:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #0259C1 | 3.20:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #0259C1 text on white | 6.55:1 | AA | Lc 81.6 | Fine for body text |
| #0259C1 text on black | 3.20:1 | AA large text | Lc -20.2 | 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 700.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C6DBF9
oklch(88.5% 0.047 257.3)
-
Step 300
300
#9EC3F9
oklch(81% 0.087 257.7)
-
Step 400
400
#68A1F5
oklch(70.6% 0.138 258)
-
Step 500
500
#3D87F2
oklch(63.2% 0.177 258)
-
Step 600
600
#166EE0
oklch(55.7% 0.191 257.8)
-
Step 700
700 (this color)
#0259C1
oklch(48.5% 0.178 258)
-
Step 800
800
#0C4B9E
oklch(42.8% 0.148 258)
-
Step 900
900
#143F7D
oklch(37.6% 0.115 258.3)
-
Step 950
950
#0D2649
oklch(27.1% 0.072 257.4)
#0259C1 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) | #0066C5 | 0.034 |
| Deuteranopia (no green cones) | #0056BF | 0.008 |
| Tritanopia (no blue cones) | #007384 | 0.135 |
| Achromatopsia (no color) | #5D5D5D | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0259C1
#0259C1
oklch(48.5% 0.178 258)
- #7E5700
#7E5700
oklch(48.6% 0.101 78.5)
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 #0259C1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.053
- Mid Blue #276AB3 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.069
- Azul #1D5DEC ΔE 0.069
- French Blue #436BAD ΔE 0.079
- Majorelle Blue #3F37C9 ΔE 0.079
- Royal Blue #4169E1 ΔE 0.080
- Denim Blue #3B5B92 ΔE 0.082
Use #0259C1 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.